From this unit, i learnt a lot of about the transformation, and also learnt a lot of communication skills. before i never would like to talk to the others, because i always think i could solve the questions by myself, but now i changed my mind, some of the questions i couldn’t, and my parter Sam helped me a lot, it is easier to understand the questions by asking her. and also helped me to review the horizontal and vertical tranlations. and new learnt alot about reflections and combining transformations. i think this unit will become a unforgetable unit of the whole math 12.